.... the '220 Minus Your Age' formula was based on males and not females .... and due to generally slightly higher MHR for women .... the formula is often adjusted slightly to '226 Minus Your Age' for women."
So, for my case, my maximum heart rate estimate would be around 226-38 .... 188.
The book then goes on to state:
.... because cycling stresses our bodies in different ways than running (eg. sitting vs standing and more balanced vs less balanced), our heart rates for cycling are usually about 5% lower than our running heart rate zones."
So, for my case, my maximum heart rate estimate .... for cycling .... would be around 178.6.
The book does not mention anything about heart rate zones for swimming.
So, what's the general consensus on the Forum .... do you all adjust your heart rate numbers for specific activities? If so, how does swimming play a role? I have a Garmin 920xt, and I can change my running, cycling, and swimming heart rate zones in Garmin Connect. Is this something that you all do, or have done? Should I change my cycling numbers compared to my running numbers? And swimming?
Also, the 188 seems high to me .... if I leave it as '220 Minus Your Age' (without a gender specific formula) then it's 182, which seems more reasonable to me. Should I be adjusting based on my female gender?
Thanks for any help! :-)